Pipe Plug, Polypropylene End Of Pipe, 143-4

Ideal for isolating, blocking, or testing sections of pipelines

Polypropylene End of Pipe Plugs Sizes: 1.5" to 4", 143-4 Series

Polypropylene End of Pipe Plugs feature a Polypropylene construction with a Natural rubber o-ring.

Fits all types of pipe at nominal sizes.
Can be used as a permanent or temporary plug.
Can be tapped for use with cleanout cover.

Mechanical Pipe Plugs Without Integral Restraint Generic Operating Instructions

Pipe Plug, Polypropylene End Of Pipe, 143-4

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Pipe Size, Nominal	Dia. Max	Dia. Min	By-Pass	Press. Pipeline Max	Style	Shipping Wt.	Item Number	Price	Action
4" (102mm)	4.09" (104mm)	3.87" (98mm)	None	13 PSI (0.90 BAR) \| 30 FT (9.2 M)	Thread Insertion	1 Lb (0.45 Kg)	143-4040-	$12.35	Add to Compare
3" (76mm)	3.09" (78mm)	2.89" (73mm)	None	13 PSI (0.90 BAR) \| 30 FT (9.2 M)	Thread Insertion	1 Lb (0.45 Kg)	143-4030-	$7.75	Add to Compare
2" (51mm)	2.09" (53mm)	1.89" (48mm)	None	22 PSI (1.52 BAR) \| 51 FT (15 M)	Thread Insertion	1 Lb (0.45 Kg)	143-4020-	$6.00	Add to Compare
1.5" (38mm)	1.63" (41mm)	1.48" (38mm)	None	22 PSI (1.52 BAR) \| 51 FT (15 M)	Thread Insertion	1 Lb (0.45 Kg)	143-4015-	$5.35	Add to Compare

The Petersen® 143-4 Series Polypropylene End of Pipe Plug provides an effective solution for low-pressure pipeline sealing, testing, and maintenance. Built for strength and dependability, this mechanical pipe plug is constructed from durable polypropylene and features a natural rubber O-ring that ensures a tight, leak-resistant seal across a wide range of applications.

These polypropylene end of pipe plugs fit standard nominal pipe sizes and can be used for temporary or permanent pipe closures. They are lightweight, corrosion-resistant, and easily installed by hand without the need for tools, making them a practical choice for both field and shop environments.

Key Features of the 143-4 Series Polypropylene End of Pipe Plug

The 143-4 Series Polypropylene End of Pipe Plug combines durable materials with easy operation for consistent performance. Each feature is designed to simplify installation while maintaining a tight, reliable seal for low-pressure applications.

Polypropylene construction provides excellent resistance to corrosion and many chemicals.
Natural rubber O-ring forms a reliable seal to prevent leakage during testing or maintenance.
Fits most of the standard nominal pipe sizes.
Suitable for both temporary sealing and permanent pipe closure.
Can be tapped for cleanout cover use or access during future maintenance.
Hand tight design simplifies installation and removal.
Effective for low pressure sealing and testing applications.

Applications of Polypropylene End of Pipe Plug for Low Pressure Pipelines

The 143-4 Series Polypropylene End of Pipe Plug is ideal for isolating, blocking, or testing sections of pipelines during installation, maintenance, or repair. Typical uses include:

Low-pressure testing of water, air, or drain lines
Temporary sealing during line cleaning or flushing
Permanent end of line sealing in plumbing and construction projects
Preventing debris or contaminants from entering open pipe ends
Creating access points for cleanout or inspection

Because of its polypropylene body and rubber O-ring, this plug is suitable for a variety of pipe materials including PVC, HDPE, steel, and cast iron. Its chemical and corrosion resistance also make it appropriate for non-corrosive industrial fluids and water systems.

Request a Quote for Polypropylene End of Pipe Plug

This polypropylene pipe plug offers a balance of economy, ease of use, and dependable performance. Its compact, hand-tightened design allows quick installation without special tools. When properly seated, the O-ring compresses to form a secure seal, minimizing the risk of leakage. These features make the 143-4 Series plug a trusted choice for contractors, technicians, and maintenance professionals seeking a low pressure mechanical pipe plug that delivers consistent results.

Contact Petersen Products on sales@petersenproducts.com or 262-692-3100 for detailed specifications or assistance selecting the right plug for your application.

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